/******************************************************************************
 * Product: Adempiere ERP & CRM Smart Business Solution                       *
 * Copyright (C) 1999-2006 ComPiere, Inc. All Rights Reserved.                *
 * This program is free software; you can redistribute it and/or modify it    *
 * under the terms version 2 of the GNU General Public License as published   *
 * by the Free Software Foundation. This program is distributed in the hope   *
 * that it will be useful, but WITHOUT ANY WARRANTY; without even the implied *
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.           *
 * See the GNU General Public License for more details.                       *
 * You should have received a copy of the GNU General Public License along    *
 * with this program; if not, write to the Free Software Foundation, Inc.,    *
 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.                     *
 * For the text or an alternative of this public license, you may reach us    *
 * ComPiere, Inc., 2620 Augustine Dr. #245, Santa Clara, CA 95054, USA        *
 * or via info@compiere.org or http://www.compiere.org/license.html           *
 *****************************************************************************/
package org.compiere.grid.ed;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.Cursor;
import java.awt.Dimension;
import java.awt.Insets;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.FocusEvent;
import java.awt.event.FocusListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyVetoException;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.util.logging.Level;

import javax.swing.JComponent;
import javax.swing.JPopupMenu;
import javax.swing.LookAndFeel;
import javax.swing.SwingUtilities;

import org.adempiere.plaf.AdempierePLAF;
import org.compiere.apps.FieldRecordInfo;
import org.compiere.model.GridField;
import org.compiere.model.MAccountLookup;
import org.compiere.model.MRole;
import org.compiere.swing.CButton;
import org.compiere.swing.CTextField;
import org.compiere.util.CLogger;
import org.compiere.util.DB;
import org.compiere.util.Env;

/**
 *	Account Control - Displays ValidCombination and launches Dialog
 *
 *  @author Jorg Janke
 *  @version  $Id: VAccount.java,v 1.2 2006/07/30 00:51:28 jjanke Exp $
 * 
 * @author Teo Sarca, SC ARHIPAC SERVICE SRL
 * 			<li>BF [ 1830531 ] Process parameter with type Account not working
 */
public final class VAccount extends JComponent
	implements VEditor, ActionListener, FocusListener
{
	/**
	 * 
	 */
	private static final long serialVersionUID = -3397625857773619178L;

	/******************************************************************************
	 *	Mouse Listener
	 */
	final class VAccount_mouseAdapter extends MouseAdapter
	{
		/**
		 *	Constructor
		 *  @param adaptee adaptee
		 */
		VAccount_mouseAdapter(VAccount adaptee)
		{
			m_adaptee = adaptee;
		}	//	VNumber_mouseAdapter

		private VAccount m_adaptee;

		/**
		 *	Mouse Listener
		 *  @param e event
		 */
		public void mouseClicked(MouseEvent e)
		{
			//	popup menu
			if (SwingUtilities.isRightMouseButton(e))
				m_adaptee.popupMenu.show((Component)e.getSource(), e.getX(), e.getY());
		}	//	mouseClicked

	}
	
	/**
	 *	Constructor
	 *  @param columnName
	 *  @param mandatory
	 *  @param isReadOnly
	 *  @param isUpdateable
	 *  @param mAccount
	 *  @param title
	 */
	public VAccount(String columnName, boolean mandatory, boolean isReadOnly, boolean isUpdateable,
		MAccountLookup mAccount, String title)
	{
		super();
		super.setName(columnName);
		m_columnName = columnName;
		m_mAccount = mAccount;
		m_title = title;
		//
		LookAndFeel.installBorder(this, "TextField.border");
		this.setLayout(new BorderLayout());
		//  Size
		this.setPreferredSize(m_text.getPreferredSize());		//	causes r/o to be the same length
		int height = m_text.getPreferredSize().height;

		//	***	Button & Text	***
		m_text.setBorder(null);
		m_text.addActionListener(this);
		m_text.addFocusListener(this);
		m_text.setFont(AdempierePLAF.getFont_Field());
		m_text.setForeground(AdempierePLAF.getTextColor_Normal());
		m_text.addMouseListener(new VAccount_mouseAdapter(this));
		this.add(m_text, BorderLayout.CENTER);

		m_button.setIcon(Env.getImageIcon("Account10.gif"));
		m_button.setMargin(new Insets(0, 0, 0, 0));
		m_button.setPreferredSize(new Dimension(height, height));
		m_button.addActionListener(this);
		m_button.setFocusable(false);
		this.add(m_button, BorderLayout.EAST);

		//	Editable
		if (isReadOnly || !isUpdateable)
			setReadWrite (false);
		else
			setReadWrite (true);
		setMandatory (mandatory);
	}	//	VAccount

	/**
	 *  Dispose
	 */
	public void dispose()
	{
		m_text = null;
		m_button = null;
		m_mAccount = null;
	}   //  dispose

	private CTextField			m_text = new CTextField (VLookup.DISPLAY_LENGTH);
	private CButton				m_button = new CButton();
	private MAccountLookup		m_mAccount;
	private Object				m_value;
	private String				m_title;
	private int					m_WindowNo;

	private String				m_columnName;
	//	Popup
	JPopupMenu 				popupMenu = new JPopupMenu();
	/**	Logger			*/
	private static CLogger log = CLogger.getCLogger(VAccount.class);

	/**
	 *	Enable/disable
	 *  @param value
	 */
	public void setReadWrite(boolean value)
	{
		m_button.setReadWrite(value);
		m_text.setReadWrite(value);
		if (m_button.isVisible() != value)
			m_button.setVisible(value);
		setBackground(false);
	}	//	setReadWrite

	/**
	 *	IsReadWrite
	 *  @return true if read write
	 */
	public boolean isReadWrite()
	{
		return m_button.isReadWrite();
	}	//	isReadWrite

	/**
	 *	Set Mandatory (and back bolor)
	 *  @param mandatory
	 */
	public void setMandatory (boolean mandatory)
	{
		m_button.setMandatory(mandatory);
		setBackground(false);
	}	//	setMandatory

	/**
	 *	Is it mandatory
	 *  @return mandatory
	 */
	public boolean isMandatory()
	{
		return m_button.isMandatory();
	}	//	isMandatory

	/**
	 *	Set Background
	 *  @param color
	 */
	public void setBackground (Color color)
	{
	//	if (!color.equals(m_text.getBackground()))
		m_text.setBackground(color);
	}	//	setBackground

	/**
	 *  Set Background based on editable / mandatory / error
	 *  @param error if true, set background to error color, otherwise mandatory/editable
	 */
	public void setBackground (boolean error)
	{
		if (error)
			setBackground(AdempierePLAF.getFieldBackground_Error());
		else if (!isReadWrite())
			setBackground(AdempierePLAF.getFieldBackground_Inactive());
		else if (isMandatory())
			setBackground(AdempierePLAF.getFieldBackground_Mandatory());
		else
			setBackground(AdempierePLAF.getFieldBackground_Normal());
	}   //  setBackground

	/**
	 *  Set Foreground
	 *  @param fg
	 */
	public void setForeground(Color fg)
	{
		m_text.setForeground(fg);
	}   //  setForeground

	/**
	 *	Set Editor to value
	 *  @param value
	 */
	public void setValue (Object value)
	{
		m_value = value;
		m_text.setText(m_mAccount.getDisplay(value));	//	loads value
		m_text.setToolTipText(m_mAccount.getDescription());
	}	//	setValue

	/**
	 * 	Request Focus
	 */
	public void requestFocus ()
	{
		m_text.requestFocus ();
	}	//	requestFocus

	/**
	 *  Property Change Listener
	 *  @param evt
	 */
	public void propertyChange (PropertyChangeEvent evt)
	{
		if (evt.getPropertyName().equals(org.compiere.model.GridField.PROPERTY))
			setValue(evt.getNewValue());
	}   //  propertyChange

	/**
	 *	Return Editor value
	 *  @return value
	 */
	public Object getValue()
	{
		return new Integer (m_mAccount.C_ValidCombination_ID);
	}	//	getValue

	/**
	 *  Return Display Value
	 *  @return String representation
	 */
	public String getDisplay()
	{
		return m_text.getText();
	}   //  getDisplay

	/**
	 *	ActionListener - Button - Start Dialog
	 *  @param e
	 */
	public void actionPerformed(ActionEvent e)
	{
		if (e.getActionCommand().equals(FieldRecordInfo.CHANGE_LOG_COMMAND))
		{
			FieldRecordInfo.start(m_mField);
			return;
		}
		
		if (e.getSource() == m_text)
			cmd_text();
		else
			cmd_button();
	}	//	actionPerformed

	/**
	 *	Button - Start Dialog
	 */
	public void cmd_button()
	{
		setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
		int C_AcctSchema_ID = Env.getContextAsInt(Env.getCtx(), m_WindowNo, "C_AcctSchema_ID", false);
		// Try to get C_AcctSchema_ID from global context - teo_sarca BF [ 1830531 ]
		if (C_AcctSchema_ID <= 0)
		{
			C_AcctSchema_ID = Env.getContextAsInt(Env.getCtx(), "$C_AcctSchema_ID");
		}
		VAccountDialog ad = new VAccountDialog (Env.getFrame(this), m_title, 
			m_mAccount, C_AcctSchema_ID);
		setCursor(Cursor.getDefaultCursor());
		//
		Integer newValue = ad.getValue();
//		if (newValue == null)
//			return;

		//	set & redisplay
		setValue(newValue);

		//	Data Binding
		try
		{
			fireVetoableChange(m_columnName, null, newValue);
		}
		catch (PropertyVetoException pve)
		{
		}
	}	//	cmd_button

	private boolean m_cmdTextRunning = false;
	private GridField m_mField; 
	/**
	 *	Text - try to find Alias or start Dialog
	 */
	public void cmd_text()
	{
		if (m_cmdTextRunning)
			return;
		m_cmdTextRunning = true;
		
		String text = m_text.getText();
		log.info("Text=" + text);
		if (text == null || text.length() == 0 || text.equals("%"))
		{
			cmd_button();
			m_cmdTextRunning = false;
			return;
		}
		if (!text.endsWith("%"))
			text += "%";
		//
		String sql = "SELECT C_ValidCombination_ID FROM C_ValidCombination "
			+ "WHERE C_AcctSchema_ID=?" 
			+ " AND (UPPER(Alias) LIKE ? OR UPPER(Combination) LIKE ?)";
		sql = MRole.getDefault().addAccessSQL(sql, 
			"C_ValidCombination", MRole.SQL_NOTQUALIFIED, MRole.SQL_RO);
		int C_AcctSchema_ID = Env.getContextAsInt(Env.getCtx(), m_WindowNo, "C_AcctSchema_ID");
		//
		int C_ValidCombination_ID = 0;
		PreparedStatement pstmt = null;
		try
		{
			pstmt = DB.prepareStatement(sql, null);
			pstmt.setInt(1, C_AcctSchema_ID);
			pstmt.setString(2, text.toUpperCase());
			pstmt.setString(3, text.toUpperCase());
			ResultSet rs = pstmt.executeQuery();
			if (rs.next())
			{
				C_ValidCombination_ID = rs.getInt(1);
				if (rs.next())		//	only one
					C_ValidCombination_ID = 0;
			}
			rs.close();
			pstmt.close();
			pstmt = null;
		}
		catch (Exception e)
		{
			log.log(Level.SEVERE, sql, e);
		}
		try
		{
			if (pstmt != null)
				pstmt.close();
			pstmt = null;
		}
		catch (Exception e)
		{
			pstmt = null;
		}
		//	We have a Value
		if (C_ValidCombination_ID > 0)
		{
			Integer newValue = new Integer(C_ValidCombination_ID);

			//	set & redisplay
			setValue(newValue);
			
			//	Data Binding
			try
			{
				fireVetoableChange(m_columnName, null, newValue);
			}
			catch (PropertyVetoException pve)
			{
			}
		}
		else
			cmd_button();
		
		m_cmdTextRunning = false;
	}	//	actionPerformed


	/**
	 *  Action Listener Interface
	 *  @param listener
	 */
	public void addActionListener(ActionListener listener)
	{
		m_text.addActionListener(listener);
	}   //  addActionListener

	/**
	 *  Set Field/WindowNo for ValuePreference (NOP)
	 *  @param mField
	 */
	public void setField (org.compiere.model.GridField mField)
	{
		if (mField != null)
			m_WindowNo = mField.getWindowNo();
		m_mField = mField;
		if (m_mField != null)
			FieldRecordInfo.addMenu(this, popupMenu);
		
	}   //  setField

	/**
	 * 	String Representation
	 *	@return info
	 */
	public String toString()
	{
		StringBuffer sb = new StringBuffer ("VAccount[");
		sb.append (m_value).append ("]");
		return sb.toString ();
	}	//	toString

	public void focusGained(FocusEvent e)
	{
	}

	public void focusLost(FocusEvent e)
	{
		if (m_text == null) return; // arhipac: teo_sarca: already disposed
									// Test Case: Open a window, click on account field that is mandatory but not filled, close the window and you will get an NPE
									// TODO: integrate to trunk
		// New text
		String newText = m_text.getText();
		if (newText == null)
			newText = "";
		// Actual text
		String actualText = m_mAccount.getDisplay(m_value);
		if (actualText == null)
			actualText = "";
		// If text was modified, try to resolve the valid combination
		if (!newText.equals(actualText))
		{
			cmd_text();
		}
	}
	
}	//	VAccount